diff --git a/cime_config/testlist_allactive.xml b/cime_config/testlist_allactive.xml
index 690bc1884..64730ae4d 100644
--- a/cime_config/testlist_allactive.xml
+++ b/cime_config/testlist_allactive.xml
@@ -8,6 +8,38 @@
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diff --git a/cime_config/testmods_dirs/allactive/crossleap/include_user_mods b/cime_config/testmods_dirs/allactive/crossleap/include_user_mods
new file mode 100644
index 000000000..6d2868784
--- /dev/null
+++ b/cime_config/testmods_dirs/allactive/crossleap/include_user_mods
@@ -0,0 +1 @@
+../defaultio
diff --git a/cime_config/testmods_dirs/allactive/crossleap/shell_commands b/cime_config/testmods_dirs/allactive/crossleap/shell_commands
new file mode 100755
index 000000000..800c5fb8e
--- /dev/null
+++ b/cime_config/testmods_dirs/allactive/crossleap/shell_commands
@@ -0,0 +1,2 @@
+./xmlchange RUN_STARTDATE=2004-02-28
+./xmlchange CLM_BLDNML_OPTS=-ignore_warnings --append
diff --git a/cime_config/testmods_dirs/allactive/crossleap_gregorian/include_user_mods b/cime_config/testmods_dirs/allactive/crossleap_gregorian/include_user_mods
new file mode 100644
index 000000000..ae8286cb1
--- /dev/null
+++ b/cime_config/testmods_dirs/allactive/crossleap_gregorian/include_user_mods
@@ -0,0 +1 @@
+../crossleap
diff --git a/cime_config/testmods_dirs/allactive/crossleap_gregorian/shell_commands b/cime_config/testmods_dirs/allactive/crossleap_gregorian/shell_commands
new file mode 100755
index 000000000..8a5681ef9
--- /dev/null
+++ b/cime_config/testmods_dirs/allactive/crossleap_gregorian/shell_commands
@@ -0,0 +1 @@
+./xmlchange CALENDAR=GREGORIAN
diff --git a/cime_config/testmods_dirs/allactive/decstart/include_user_mods b/cime_config/testmods_dirs/allactive/decstart/include_user_mods
new file mode 100644
index 000000000..6d2868784
--- /dev/null
+++ b/cime_config/testmods_dirs/allactive/decstart/include_user_mods
@@ -0,0 +1 @@
+../defaultio
diff --git a/cime_config/testmods_dirs/allactive/decstart/shell_commands b/cime_config/testmods_dirs/allactive/decstart/shell_commands
new file mode 100755
index 000000000..f3e89bb4f
--- /dev/null
+++ b/cime_config/testmods_dirs/allactive/decstart/shell_commands
@@ -0,0 +1,2 @@
+./xmlchange RUN_STARTDATE=2001-12-30
+./xmlchange CLM_BLDNML_OPTS=-ignore_warnings --append